mirror of
git://sourceware.org/git/glibc.git
synced 2024-11-27 03:41:23 +08:00
132 lines
3.3 KiB
C
132 lines
3.3 KiB
C
/* Copyright (C) 2005-2021 Free Software Foundation, Inc.
|
|
This file is part of the GNU C Library.
|
|
Contributed by Jakub Jelinek <jakub@redhat.com>, 2005.
|
|
|
|
The GNU C Library is free software; you can redistribute it and/or
|
|
modify it under the terms of the GNU Lesser General Public
|
|
License as published by the Free Software Foundation; either
|
|
version 2.1 of the License, or (at your option) any later version.
|
|
|
|
The GNU C Library is distributed in the hope that it will be useful,
|
|
but WITHOUT ANY WARRANTY; without even the implied warranty of
|
|
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
|
|
Lesser General Public License for more details.
|
|
|
|
You should have received a copy of the GNU Lesser General Public
|
|
License along with the GNU C Library; if not, see
|
|
<https://www.gnu.org/licenses/>. */
|
|
|
|
#include <errno.h>
|
|
#include <stdio.h>
|
|
#include <stdlib.h>
|
|
#include <libc-diag.h>
|
|
|
|
static int errors = 0;
|
|
|
|
static void
|
|
merror (const char *msg)
|
|
{
|
|
++errors;
|
|
printf ("Error: %s\n", msg);
|
|
}
|
|
|
|
static int
|
|
do_test (void)
|
|
{
|
|
void *p, *q;
|
|
|
|
errno = 0;
|
|
|
|
DIAG_PUSH_NEEDS_COMMENT;
|
|
#if __GNUC_PREREQ (7, 0)
|
|
/* GCC 7 warns about too-large allocations; here we want to test
|
|
that they fail. */
|
|
DIAG_IGNORE_NEEDS_COMMENT (7, "-Walloc-size-larger-than=");
|
|
#endif
|
|
p = malloc (-1);
|
|
DIAG_POP_NEEDS_COMMENT;
|
|
|
|
if (p != NULL)
|
|
merror ("malloc (-1) succeeded.");
|
|
else if (errno != ENOMEM)
|
|
merror ("errno is not set correctly.");
|
|
|
|
p = malloc (10);
|
|
if (p == NULL)
|
|
merror ("malloc (10) failed.");
|
|
|
|
p = realloc (p, 0);
|
|
if (p != NULL)
|
|
merror ("realloc (p, 0) failed.");
|
|
|
|
p = malloc (0);
|
|
if (p == NULL)
|
|
merror ("malloc (0) failed.");
|
|
|
|
p = realloc (p, 0);
|
|
if (p != NULL)
|
|
merror ("realloc (p, 0) failed.");
|
|
|
|
q = malloc (256);
|
|
if (q == NULL)
|
|
merror ("malloc (256) failed.");
|
|
|
|
p = malloc (512);
|
|
if (p == NULL)
|
|
merror ("malloc (512) failed.");
|
|
|
|
DIAG_PUSH_NEEDS_COMMENT;
|
|
#if __GNUC_PREREQ (7, 0)
|
|
/* GCC 7 warns about too-large allocations; here we want to test
|
|
that they fail. */
|
|
DIAG_IGNORE_NEEDS_COMMENT (7, "-Walloc-size-larger-than=");
|
|
#endif
|
|
if (realloc (p, -256) != NULL)
|
|
merror ("realloc (p, -256) succeeded.");
|
|
else if (errno != ENOMEM)
|
|
merror ("errno is not set correctly.");
|
|
DIAG_POP_NEEDS_COMMENT;
|
|
|
|
#if __GNUC_PREREQ (12, 0)
|
|
/* Ignore a valid warning about using a pointer made indeterminate
|
|
by a prior call to realloc(). */
|
|
DIAG_IGNORE_NEEDS_COMMENT (12, "-Wuse-after-free");
|
|
#endif
|
|
free (p);
|
|
#if __GNUC_PREREQ (12, 0)
|
|
DIAG_POP_NEEDS_COMMENT;
|
|
#endif
|
|
|
|
p = malloc (512);
|
|
if (p == NULL)
|
|
merror ("malloc (512) failed.");
|
|
|
|
DIAG_PUSH_NEEDS_COMMENT;
|
|
#if __GNUC_PREREQ (7, 0)
|
|
/* GCC 7 warns about too-large allocations; here we want to test
|
|
that they fail. */
|
|
DIAG_IGNORE_NEEDS_COMMENT (7, "-Walloc-size-larger-than=");
|
|
#endif
|
|
if (realloc (p, -1) != NULL)
|
|
merror ("realloc (p, -1) succeeded.");
|
|
else if (errno != ENOMEM)
|
|
merror ("errno is not set correctly.");
|
|
DIAG_POP_NEEDS_COMMENT;
|
|
|
|
#if __GNUC_PREREQ (12, 0)
|
|
/* Ignore a valid warning about using a pointer made indeterminate
|
|
by a prior call to realloc(). */
|
|
DIAG_IGNORE_NEEDS_COMMENT (12, "-Wuse-after-free");
|
|
#endif
|
|
free (p);
|
|
#if __GNUC_PREREQ (12, 0)
|
|
DIAG_POP_NEEDS_COMMENT;
|
|
#endif
|
|
free (q);
|
|
|
|
return errors != 0;
|
|
}
|
|
|
|
#define TEST_FUNCTION do_test ()
|
|
#include "../test-skeleton.c"
|